Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number CRYSTICILLINAS30 found under Penicillin G Procai by Squibb E R And Sons Inc. The National Stock Number assigned to this part is 6505006848737, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like CRYSTICILLINAS30.